Thymeleaf Iteration with buttons, every button onclick gets called simultaniosly

    <div>
            <div class="alleyContainer" th:each="entry, it : ${listAlleys}" th:with="index = ${it.count}"> <!-- th:classappend="${entry.getType()}" -->
                <div class="alleyContainer grid-alleyContainer">
                    <button class="btn" id="${entry.getId()}" th:id="${entry.getId()}" th:text="#{reservation.alley.book}" th:onclick="${form.addAlley(entry.getId())}">
                        Book Lane
                    </button>
                </div>
            </div>
        </div>